// This is a very basic captcha.  A more robust solution would use a library.
function generateCaptcha() {
    // This is a placeholder.  The server generates the captcha.
    // The HTML for the captcha image is already in the login.html file.

    // This is a placeholder. The server generates the captha.
    // The HTML for the captha image is already in the login.html file.
    return "your_captcha_image_data";

}
